Complete, Cutting Edge Solutions​

Welcome to the Cyber Home of Ever Green Septic Design Inc. (EGSD)!

EGSD specializes in the permitting and design of on-site wastewater (septic) systems in southwest Washington. We are dedicated to providing quality, individualized service to all of our customers. Whether you need a septic design for your dream house, have a large commercial project where public sewer is not available, require multiple perc approvals for a rural subdivision, have a failed septic system or require a feasibility study prior to purchasing a new property, we can help!

For new construction, many jurisdictions now require a permitting process for the rainwater run-off (stormwater) generated by driveways, roofs, etc. With these new regulations and our vast experience with soils evaluation, we also offer soils testing for the stormwater permitting. When combined with the required septic analysis, we can complete this work quickly and efficiently, saving you time and money!

Our Areas of Expertise:​​Our work can be divided into three main categories. Click to learn more about these specific areas:

​Our Service Area:Our primary service area is Clark County and Skamania County WA (Battle Ground, Ridgefield, LeCenter, Woodland, Amboy, Yacolt, Camas, Washougal, North Bonneville, Stevenson, Cougar). For larger projects, we will travel across the state, but smaller/residential projects are more economical to hire someone local.

Very knowledgeable engineers. I saved a ton of money and got a better system than what was previously recommended. Courteous folks to work with from the first phone call until completion. True professionals. Very highly recommended.Geary Ferguson